/*
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 * and open the template in the editor.
 */
package utility;

/**
 *
 * @author Acer
 */
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class DemoMD5
{    
    private static String convertedToHex(byte[] data)
    {
        StringBuffer buf = new StringBuffer();
       
        for (int i = 0; i < data.length; i++)
        {
            int halfOfByte = (data[i] >>> 4) & 0x0F;
            int twoHalfBytes = 0;
           
            do
            {
                if ((0 <= halfOfByte) && (halfOfByte <= 9))
                {
                    buf.append( (char) ('0' + halfOfByte) );
                }
               
                else
                {
                    buf.append( (char) ('a' + (halfOfByte - 10)) );
                }

                halfOfByte = data[i] & 0x0F;

            } while(twoHalfBytes++ < 1);
        }
        return buf.toString();
    }

    public static String MD5(String text)
    throws NoSuchAlgorithmException, UnsupportedEncodingException 
    {
        MessageDigest md;
        md = MessageDigest.getInstance("MD5");
        byte[] md5 = new byte[64];
        md.update(text.getBytes("iso-8859-1"), 0, text.length());
        md5 = md.digest();
        return convertedToHex(md5);
    }
} 